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Biomedical subjects

M Vanderveken

Publications and source records attributed to M Vanderveken.

13 recordsLinked to original sources

Skeletal muscle metastasis from a conventional renal cell carcinoma, two years after nephrectomy: a case report.

In this paper, we describe a case of skeletal muscle metastasis from a conventional (clear cell) renal cell carcinoma, two years after nephrectomy. Our first clinical tentative diagnosis was soft tissue tumour, showing the mimicking capacity of renal cell carcinoma. A review of literature shows that skeletal muscle metastases from renal cell carcinoma are extremely rare: only 16 cases have been described. In 5/16, the muscle mass was the initial manifestation of the renal tumour. In the other 11/16, the muscle masses were metachronous (10 months-16 years). We conclude that, when confronted with a patient with a muscle mass and a history of renal cell carcinoma, one should always keep in mind the possibility of a (late) renal cell carcinoma metastasis.

Aged↗

Osteomyelitis pubis versus osteitis pubis: a case presentation and review of the literature.

An athletic 23 year old man presented with suprapubic tenderness, fever, and raised inflammatory blood variables. A diagnostic laparoscopy was performed, with a presumed diagnosis of retrocaecal appendicitis, but no abnormalities were found, apart from free fluid in the pouch of Douglas. Imaging of the pubic area suggested bony infection and inflammation. Biopsy and culture confirmed the presence of Staphylococcus aureus, a very common pathogen. The final diagnosis was osteomyelitis pubis, an infectious disease, and osteitis pubis, an inflammatory disease.

Adult↗

Laparoscopic management of acute small bowel obstruction.

Laparosopy is now a well established tool in abdominal surgery. More often it is used in acute abominal situations. We present our experience with laparoscopy and laparoscopic treatment in patients with acute small bowel obstruction. Although it is technically challenging, in carefully selected patients laparoscopy and laparoscopic treatment is feasible and a valid option for treatment.

Adult↗

Chondrosarcoma of the thoracic wall.

Eight cases of chondrosarcoma of the thoracic wall were treated during a 13-year period. The radicality of tumor resection was positively correlated with patient survival. Wide primary resection without preceding biopsy is advocated for thoracic lesions suspected from computed tomography and magnetic resonance imaging to be chondrosarcoma.

Adult↗

Simulation of vaccination and resistance in leprosy using an epidemiometric model.

Epidemiometric models are useful in studying disease dynamics in populations. Such a model was developed for leprosy and proved useful, but did not take into account age- and sex-specific incidence rates. This paper presents a new version of the model which makes provisions for age and sex differential rates according to the type of leprosy and which includes more realistic parameters for death rates, population variations, and natural growth rates. This new version of the epidemiometric model was used to stimulate the effects of various vaccines and drug resistance on the incidence of leprosy in a population.

Epidemiologic Methods↗

A defunctioning stoma in the treatment of lower third rectal carcinoma.

INTRODUCTION: Total mesorectal excision (TME) is the accepted standard for rectal cancer treatment. However, there is an increased risk of symptomatic anastomotic leakage associated with TME as TME potentially endangers the blood supply of the remaining rectum. On top of this, many patients will receive neo-adjuvant radio-chemotherapy. A defunctioning stoma helps in avoiding severe complications of anastomotic failure. MATERIAL AND METHODS: We prospectively collected data of all patients with a rectal carcinoma within reach of the palpating finger, operated on in our department between December 2000 and January 2005. There were 70 patients (42 men and 28 women, median age 70 (range 32-95)). RESULTS: In 40 patients (40/70 = 57%) a sphincter-saving procedure was performed. Eleven patients were diagnosed with anastomotic leakage or failure. Seven patients had neo-adjuvant radio-chemotherapy, 4 had no neo-adjuvant therapy. In 4 patients signs of anastomotic leakage were seen on the barium-enema that is routinely performed before closing the defunctioning stoma. Seven patients (7/40 = 17,5%) had clinical signs of anastomotic leakage. Three of them could be treated conservatively with antibiotics and parenteral nutrition. Two of these patients did not have a defunctioning stoma. Four patients needed re-intervention and were treated in intensive care for several days. Three of these patients did not have a defunctioning stoma. CONCLUSION: Neo-adjuvant radio-chemotherapy and TME resection are two factors in the treatment of rectal cancer that might interfere with anastomotic healing in the case of a sphincter-saving procedure. The construction of a defunctioning stoma helps in limiting the complications of anastomotic leakage or failure.

Adult↗

Frozen section in thyroid surgery.

OBJECTIVE: We studied the use of frozen section in the detection of malignancy in thyroid surgery in a large teaching hospital. MATERIALS AND METHODS: We reviewed all case notes of patients operated on for thyroid disease between January 1st 1997 and December 31st 2004. We identified 420 operations in 408 patients. Data were available for 417 operations. RESULTS: In patients with a solitary thyroid nodule, a frozen section is sometimes performed. Frozen section was done in 128 of 417 operations. The specificity for malignancy was 98.16%. The positive predictive value was 81.81% and the negative predictive value 93.85%. However the sensitivity was 56.25%. Frozen section is a time-consuming investigation. With follicular lesions it is very difficult to distinguish between benign disease and malignancy since the diagnosis of malignancy depends on capsular and/or blood vessel invasion. Also it costs about 100 Euro (approximately 125 dollars). CONCLUSION: This study confirms that adequate histopathologic diagnosis of thyroid disease is based on extensive subsampling of the specimen which is not possible during a peroperatory frozen section procedure.

Adolescent↗

Prophylactic use of a single dose of tobramycin in elective colorectal surgery.

The aim of this prospective study is to acquire clinical experience with a single high dose of tobramycin in prophylactic use. Sixty three patients undergoing elective colorectal surgery, were assigned to receive antibiotic prophylaxis (24 hours perioperatively) in the form of a single high dose of tobramycin and a classically recommended thrice-a-day (TID) administration of clindamycin. The planned dose for tobramycin was 3.3 mg/kg/day. Adjustment was made in case of impaired renal function. Serum levels of the drug were monitored. The results showed well predictable levels. Six out of fifty five evaluable patients (10.9%) presented postoperative infectious complications within the follow up period. No renal nor otovestibular toxicity was recorded.

Adult↗

Choledochotomy: primary closure versus T-tube. A prospective trial.

From January 1986 until December 1988 twenty two patients entered a prospective trial comparing primary closure versus T-tube drainage after exploratory choledochotomy for lithiasis, giving 11 primary closures (P) and 11 on T-tube (T). Both groups were well matched for age and risk factors. Preoperative values of alkaline phosphatase on day 2 and 7 were significantly lower in case of primary closure (p less than .025). In case of primary closure there was 1 bile leakage without peritonitis. In 9 T-tube biles additional micro-organisms appeared without clinical importance. In each group 1 infectious complication occurred. Post-operative hospital stay was 12 days (P) versus 14 (T) (p less than .05). There was 1 residual lithiasis (P), without detrimental effect on the healing of the primary closure. Endoscopic sphincterotomy and stone extraction was performed. Within the given exclusion criteria closing a choledochotomy primarily is a safe and attractive procedure.

Adult↗